feat(clerk): add collection flow — multi-DR savings to CR GL with maker-checker

- Transaction entry: detect collection mode (N DR savings → 1 CR GL) and disbursement mode (1 DR GL → N CR savings); build dbCr-tagged payload for backend
- Disbursement review: show 'GL Credit (Target)' / 'Debit Entries' labels for collection; fix double-count by summing only DR entries for collection totals; dynamic approve button text
- My disbursement requests: add DR/CR badge column in expanded credit-entries preview
- My requests / withdrawal-requests: minor consistency updates

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/app/clerk/my-disbursement-requests/my-disbursement-requests.component.ts

@@ -45,6 +45,7 @@ export class MyDisbursementRequestsComponent implements OnInit {
 
   requests: any[] = [];
   totalRecords = 0;
+  expandedIds = new Set<number>();
   pageSize = 20;
   pageIndex = 0;
   pageSizeOptions = [
@@ -164,15 +165,27 @@ export class MyDisbursementRequestsComponent implements OnInit {
     this.router.navigate(['/clerk/dashboard']);
   }
 
-  creditCount(req: any): number {
+  toggleExpand(id: number): void {
+    if (this.expandedIds.has(id)) {
+      this.expandedIds.delete(id);
+    } else {
+      this.expandedIds.add(id);
+    }
+  }
+
+  getCreditEntries(req: any): any[] {
     try {
       const arr = typeof req.credit_entries === 'string' ? JSON.parse(req.credit_entries) : req.credit_entries;
-      return Array.isArray(arr) ? arr.length : 0;
+      return Array.isArray(arr) ? arr.map((e: any) => ({ ...e, amount: parseFloat(e.amount) || 0 })) : [];
     } catch {
-      return 0;
+      return [];
     }
   }
 
+  creditCount(req: any): number {
+    return this.getCreditEntries(req).length;
+  }
+
   statusClass(status: string): string {
     const map: Record<string, string> = {
       PENDING: 'mdr-status--pending',